2043224010021 has 4 divisors (see below), whose sum is σ = 2724298680032. Its totient is φ = 1362149340012.

The previous prime is 2043224010013. The next prime is 2043224010059. The reversal of 2043224010021 is 1200104223402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2043224010021 - 2³ = 2043224010013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2043224010021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043224011021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340537335001 + ... + 340537335006.

It is an arithmetic number, because the mean of its divisors is an integer number (681074670008).

Almost surely, 2^{2043224010021} is an apocalyptic number.

It is an amenable number.

2043224010021 is a deficient number, since it is larger than the sum of its proper divisors (681074670011).

2043224010021 is an equidigital number, since it uses as much as digits as its factorization.

2043224010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681074670010.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 2043224010021 its reverse (1200104223402), we get a palindrome (3243328233423).

The spelling of 2043224010021 in words is "two trillion, forty-three billion, two hundred twenty-four million, ten thousand, twenty-one".